Pustular psoriasis. Pustules with identical appearance may be seen in a deficiency of interleukin 1 receptor antagonist (DIRA), and this disorder may also cause lytic lesions in the bones. Treatment for this disorder is anakinra, a recombinant form of the human interleukin-1 receptor antagonist.

Source: Prose NS, Kristal L. Weinberg's Color Atlas of Pediatric Dermatology, 5e; 2017.